Logic volume problem

I am having a **** of a time with volume in logic 9. I never had this problem with 8. The issue is happening on nearly every track I make whether an audio instrument or audio. As you can see in the picture I posted, the audio just randomly changes. I clearly set the automation to be at -8.2db but as the track was playing it randomly jumped up to +2.6db. I think the problem is that my controller (M-Audio Keystation 49e) is sending midi data from the volume slider that's on the controller. I think it's just so sensitive that it will set the track volume to whatever the volume slider is at. Maybe the bass in my room is causing it. Either way, it should not be that sensitive. I never had this problem with Logic 8 because I don't think Logic 8 recognized the volume from the slider on the midi controller. Somehow Logic 9 does but I don't want it to. Does anyone know how to disable the volume slider midi data from being sent to Logic? I tried looking through prefs and audio midi setup in OS X but can't find anything. It's driving me batty. Any help would be appreciated. Thanks!